Description
PAC Racing 1300 Series Valve Spring Dual Spring 644 lb in Spring Rate 1.150" Coil Bind 1.550" OD 84303 XL Mufflers are reflection style WEI7155 XL Mufflers are reflection style mufflers using a combination of perforated tubing and baffles to reduce unwanted resonance and increase exhaust flow Rochester 2 Barrel and our High Tech Engine test lab Micro Hardness